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What are the differences between Tropism and Nastic Movement?
What is the difference between motor and sensory neurons?
explain why brain and spinal cord are considered as central nervous system.
answrr fastt plzz..:/
Name the part of neuron:
(a) where information is acquired.
(b) through which information travels as fast as electrical impulse.
Is sleeping a voluntary or involuntary action? Explain
notes on control and cordination
What is the difference between reflex action and reflex arc?
What is Reflex Arc? Draw neat diagram of the components in a reflex arc. Why do impulses flow only only in one direction in a reflex arc?
Salivation and vomiting are controlled by
What is structural and functional unit of nervous system? Name its any two components?
define hormone. write four characteristic of hormones in humans.
what is difference b/w tropic and nastic movements in plants ? plzzz ans it fast.
How do plant cells change their shape?
name two hormones secreted by pancreas. write ther functions
differences between nervous control and chemical control
is there any difference in how sugar and food taste if your nose is blocked? if so, why might this be happening?
When plants are eaten by primary consumers, a great deal of energy is lost as heat to the environment
design an experiment to demonstrate hydrotropism
a block of mass 10 kg is pulled with a constant speed on a rough horizontal plane with a force of 19.6 n. the co-officient of friction is....?
Write differences between exocrine glands and endocrine glands
Name Any Two Substances Which Are Selectively Re-Absorbed As The Urine Flows Along The Tube Of Nephron.
define control and co-ordination
Write two differences between response of plants and response of amimals to stimuli.
How does our body respond when adrenaline is secreted into the
if we cut our vein or nerve we will die after 5 to 10 mins but if we cut our hand from the elbow or shoulder we don't die. why?
phototropism occur in plants?
Name the part of brain which controls
how does the nervous tissue cause action?
with the help of schematic diagram ,trace the sequence of event occuring .when u step on a sharp object. name the action.
How do muscle cells move?
How is spinal cord and brain protected in the human body???
what is a reflex action? explain briefly its mechanism in humans. three mark question.
What is the role of the brain in reflex action?
What happens at the synapse between two neurons?
Why do the Mimosa pudica plant leaves droop when touched? exlpian
How does chemical coordination take place in animals?
. Which organ secrets a hormone when blood sugar rises in our body ? Name the hormone and name one enzyme released by this organ.
What Is Geotropism?(in plants)
Name two tissues which provide contol and coordination in animals.
Draw the structure of a neuron and explain its function.
what happens at the synapse between two neurons
Give reason why endocrine glands release their secretions into blood?
explain the structure and function of a nephron.
Give the differences and similarities betweem coordination in animals and coordination in plants.
what is the name of the tissue present in the brain
The brain is lodged inside the cavity of skull known as :
Give 5 examples of reflex actions.
What is the difference between enzymes and hormones?
Explain different types of tactic movement.
1. differentiate between nastic and tropic movement.( 3 points)
2. differentiate between receptors and effectors.(3 points)
Draw ray diagrams for the following cases when a ray of light
Define nerve impulse. Which structure in a neuron helps to conduct a nerveimpulse:a. Towards the cell body.b. Away from the cell body.
draw a reflex arc showing Visceral Cerebral reflex action
1.(a) design an experiment to demonstrate positive and negative geotropism.
(b) give reasons for the following -
(1) use of iodised salt is adviced
(2) salivation is considered an involuntary action
(3) the brain is surrounded by fluid.
what is reflex arc?how does it works?explain with a diagram.
what is reflex action?explain the mechanism of reflex action with a suitable example.
What are phytohormones ? Name any two phytohormones along with one fucntion of
List the three kinds of blood vessels of human circulatory system and write their
What is the difference between Cerebrum and Cerebellum...??? (in points plz)
why leaves of plant drop off seasonally ?
Which signals will get disrupted in case of spinal cord injury ?
Write a note on lymphatic system in human beings stating two major functions of lymph.
Why do impulses flow only in one direction in a reflex arc?
Nervous and hormonal system together performs the function of control and coordination in human beings. Justify the statement.
Food moves down the gut by peristalsis. Which region of brain controls peristalsis?
what is the significance of reflex action?
plzz answrr fastt...:/
which one of the following best explains how we can tell which part of th body a sensory nerve impulse come from ?
A) impulses from each part of the body are different
B) each part of the body is connected to its own region of the brain
C) Sensations of touch, heat ,light etc. are carried by nerve fibres to the brain
D) we learn from experience where the impulses come from
what are hydrocarbon?write the name and the general formula of (i) saturated hydrocarbons, (ii) unsaturated hydrocarbons, and draw the structure of one hydrocarbons of each type.how can an unsaturateds hydrocarbon be made saturated?
Explain with the help of diagram how reflex action take place?
What is the difference between nastic movement an tropic movement?
name the hormone secreted by thyroid gland and state its functions. why is it improtant for us to iodised salt in ourdeit name the disease caused due to deficiency of iodine and mention its symptoms
expand 3F, 4S- gland
examples of voluntary and involuntary actions
How does our body maintain blood sugar level?
what is reflex action?explain with examples.
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